a{
    text-decoration: none;
}
a:hover{
    cursor: pointer;
    text-decoration: none;
}
ul,li{
    margin: 0;
    padding: 0;
}
.text-right{
    text-align: right;
}
.text-left{
    text-align: left;
}
.text-center{
    text-align: center;
}
.nav-menu{
    width: 200px;
    float: left;
    position:fixed;
    top: 50px;
    left:0;
    bottom: 0;
    margin: 0;
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
    border-right: 1px solid #e5e5e5;
    background-color: #f3f3f3;
    box-sizing: border-box;
}
.nav-menu .nav-menu-list{
    position: relative;
    display: block;
    padding: 0;
    margin: 0;
}
.nav-menu .nav-menu-list .nav-menu-link{
    position: relative;
    display: block;
    padding: 10px 20px;
    font-weight: normal;
    font-size: 1.05rem;
    color: #999999;
    text-decoration: none;
    transition: background-color 0.2s ease-in-out 0s;
} 
/*.nav-menu .nav-menu-list .nav-menu-link::before{
    content: url(/assets/img/operate.png);
    position: relative;
    top: 4px;
}*/
.nav-undered-lists ul .nav-list-item a{
    padding-left: 10px;
    color: #999999;
    font-size: 1rem;
    display: block;
    line-height: 32px;
    padding: 0px 15px 0px 35px;
    transition: all .2s;
}
.nav-menu .nav-menu-list .parent{
    color: #1090d3;
}
/*.nav-menu .nav-menu-list .parent::before{
    content: url(/assets/img/operate-active.png);
    position: relative;
    top: 4px;
}*/
.nav-undered-lists ul .nav-list-item a:hover{
    background: rgba(255,255,255,0.24) none repeat scroll 0 0;
    color: #1090d3;
}
.nav-undered-lists ul .nav-list-item a.active{
    background-color:#1090d3;
    color: #ffffff;
}
.app-content{
    margin-top: 50px;
    margin-left: 200px;
    height: 100%;
    position: relative;
    box-sizing: border-box;
    
    font-family: '微软雅黑';
    color: #333333;
}
.app-content nav{
    text-align: center;
}
